The mean income per household in a certain state is $28,000 with a standard deviation of $8,500. Assuming a normal distribution, 95% of all households have an income over what amount?a. $11,000 b. $19,500 c. $14,000 d. $42,000
Added by Gary Z.
Step 1
Step 1: Identify the given information: - Mean income (\(\mu\)) = $28,000 - Standard deviation (\(\sigma\)) = $8,500 - We need to find the income level above which 95% of all households fall. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Adi S and 67 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Assume the given distributions are roughly normal. The mean income per household in a certain state is $\$ 9500$ with a standard deviation of $\$ 1750 .$ The middle $95 \%$ of incomes are between what two values? (A) $9500 \pm 1.645(1750)$ (B) $9500 \pm 1.96(1750)$ (C) $9500 \pm 1.645\left(\frac{1750}{2}\right)$ (D) $9500 \pm \frac{1750}{1.645}$ (E) $9500 \pm \frac{1750}{1.96}$
Sampling Distributions
Quiz 21
Assume the given distributions are normal. The mean income per household in a certain state is $9500 with a standard deviation of $1750. The middle 95% of incomes are between what two values? A. $5422 and $13,578 B. $6070 and $12,930 C. $6621 and $12,379 D. $7260 and $11,740 E. $8049 and $10,951
Jason H.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD